not quite sure about Cleveland, where it appears to split into Business and Bypass with no regular route, but both routes seem to be marked as US 11 proper away from the ends; the relation currently follows the bypass

entry onto I-70 at Seibert via SH 59 is not marked, but if you continue west the road becomes unpaved gap at the Colorado-Kansas corder because Colorado signs it on the old surface road but Kansas puts it on I-70

Two gaps, one from the TX/NM line to Fountain, CO, since NMSHTD and CDOT do not define US 85 to exist here, and AASHTO's 1989 log (latest available) has it using the old road in a number of places, and the other from north of Fountain to Castle Rock, since the Fountain segment ends with no access to I-25